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CDS Full Form: Combined Defence Services

The CDS full form is Combined Defence Services, one of the most popular and prestigious defence exams in India. It is conducted for graduates who aspire to become officers in the Indian Army, Navy, and Air Force.

If you are serious about a defence career after graduation, understanding CDS is essential. At GAPS SSB, aspirants are trained to prepare strategically for both the written exam and SSB interview.


What is CDS (Combined Defence Services)?

The Combined Defence Services (CDS) exam is conducted twice a year to recruit candidates into:

  • Indian Military Academy (IMA)
  • Officers Training Academy (OTA)
  • Indian Naval Academy (INA)
  • Air Force Academy (AFA)

It is one of the most direct ways for graduates to enter the defence forces as officers.


Who Can Apply for CDS?

To apply for CDS, candidates must meet the following criteria:

Educational Qualification

  • Graduation (for Army & OTA)
  • Engineering degree (for Navy)
  • Graduation with Physics & Maths (for Air Force)

Age Limit (Approx.)

  • IMA: 19–24 years
  • OTA: 19–25 years
  • INA: 19–22 years
  • AFA: 20–24 years

CDS Exam Pattern

For IMA, INA, AFA:

  • English – 100 marks
  • General Knowledge – 100 marks
  • Mathematics – 100 marks

For OTA:

  • English – 100 marks
  • General Knowledge – 100 marks

All papers are objective type with negative marking.


CDS Selection Process

The CDS selection process has two stages:

1. Written Examination

Candidates must clear the written test conducted nationwide.

2. SSB Interview

Shortlisted candidates appear for the 5-day SSB interview.

The final selection is based on:

  • Written exam marks
  • SSB performance
  • Medical fitness

At GAPS SSB, candidates receive complete support for both stages.


Why CDS is Important?

The Combined Defence Services exam is important because:

  • It offers direct entry after graduation
  • Provides opportunity to join as an officer
  • Offers a respected and secure career
  • Builds leadership and discipline

CDS Salary and Career Growth

After selection, candidates undergo training and are commissioned as officers.

Starting Salary:

  • Approx. ₹56,000 to ₹1,77,500 (depending on rank)

Additional Benefits:

  • Allowances
  • Medical facilities
  • Pension
  • Housing

Role of CDS in Defence Career

CDS is one of the best options for:

  • Graduates who missed NDA
  • Candidates seeking officer-level entry
  • Aspirants targeting OTA (including women)

How GAPS SSB Helps in CDS Preparation

At GAPS SSB, aspirants get:

  • Written exam preparation
  • SSB interview training
  • Mock tests and practice sessions
  • Personality development guidance

This ensures complete preparation for CDS success.


Final Words

The CDS full form – Combined Defence Services represents one of the strongest pathways to join the Indian Armed Forces after graduation.

With the right preparation, consistency, and expert guidance from GAPS SSB, you can successfully clear CDS and achieve your dream of becoming a defence officer.

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What Our Student Says

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Gurpal Singh
07:22 28 Jul 25
It was great experience. I spend 14 days in gaps academy . I cleared my doubt’s ,build confidence and reduce stage fear .specially thanks to deepak sir he cleared my all psychology doubts.his way of teaching was really good. Thanks to all gaps mentors
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Divakar Kumar
12:54 25 Jul 25
Hi guys, I'm presently preparing for AMC NT .
Initially I was totally un awair from process, I came here and I got good knowledge about whole process. And the teacher personally clear doubts , teaching method is too good . Make concepts very clear. Personally
Thanks to Dipak sir who clear doubts in psychology & Interview, as well as in GTO he is allrounder his teaching methid clear all doubts and make my concepts very clear. Thanks all gaps ssb team .
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Rajashekar Reddy
12:53 25 Jul 25
It was my wonderful experience. I improve my psy and GTO. They build my confidence and make me understand and made me perfect through self introspection

Especially the Academy professor Psy Deepak Sir, he is a well qualified in psychology, interview and as well as GTO.

I learned a lot and cleared my doubts overthere, the way they teached I really appreciate for tremendous job.
I really thanks to entire staff of Gaps Academy

I strongly recommend who want to join the academy go for without any doubts
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Manni Singh
12:27 21 Jul 25
Excellent Academy in India
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Prince Shekhawat
05:16 20 Jul 25
Being part of the ssb mentorship program really helped me a lot and helped me to learn many things about myself.
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Vipin T
05:13 20 Jul 25
It was my great pleasure to be part of this academy and was able to learn many things which helped me a lot
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RAM CHANDER
07:08 19 Jul 25
Got recommended from 2 AFSB Mysore in my 1st NDA attempt. Thanks to the mentors at GAPS SSB for putting endless efforts on each candidate and working tirelessly to achieve the best results. Would recommend everyone to join GAPS for reaching their fullest potential.
Regards,
Khushi
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Anshul Sehrawat
03:23 17 Jul 25
I'm thrilled to share that I got recommended in my first attempt from 1 AFSB Dehradun, thanks to guidance by Deepak Sir , Saurabh Sir and Amar Sir.The coaching and mentorship I received were top-notch, and the faculty's expertise and personalized attention helped me overcome my weaknesses and showcase my strengths. Highly recommended for anyone aspiring to join the Indian Armed Forces!
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Harikesh Gadekar
03:00 17 Jul 25
My experience has been fantastic with sir. Here you'll get personal attention to know your performance. Here I got to know where I'm going wrong and sir has been helping me to improve. You can call sir anytime he'll be there to help you and do better.
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Aakarsh Pathania
10:10 15 Jul 25
Amazing place to prepare for the SSB. Experienced teachers provide feedback on the daily practice, weekly psych tests and good facilities.

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    Er. Deepak Kumar Prasad

    Director of GAPS SSB 
    Psychologist/GTO/ and I/O, B-Tech(Mech)
    Ex IMA, 7 Times Recommended
    Alumni of RMS and AIT
    20 years of Corporate Experience

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